megaspore

As a noun megaspore

is (botany) the larger spore of a heterosporous plant, typically producing a female gametophyte.

As an adjective undefined is

lacking a definition or value.

In botany terms the difference between megaspore and ovule

is that megaspore is the larger spore of a heterosporous plant, typically producing a female gametophyte while ovule is the structure in a plant that develops into a seed after fertilization; the megasporangium of a seed plant with its enclosing integuments.

As nouns the difference between egg and megaspore

is that egg is an approximately spherical or ellipsoidal body produced by birds, snakes, insects and other animals, housing the embryo during its development while megaspore is the larger spore of a heterosporous plant, typically producing a female gametophyte.

As a verb egg

is to throw eggs at.

As nouns the difference between megaspore and embryosac

is that megaspore is the larger spore of a heterosporous plant, typically producing a female gametophyte while embryosac is alternative form of embryo sac.

As nouns the difference between megastore and megaspore

is that megastore is a large supermarket or similar retail outlet; a superstore while megaspore is (botany) the larger spore of a heterosporous plant, typically producing a female gametophyte.

As nouns the difference between megaspore and gametes

is that megaspore is the larger spore of a heterosporous plant, typically producing a female gametophyte while gametes is plural of gamete.

As nouns the difference between megaspore and megasporogenesis

is that megaspore is (botany) the larger spore of a heterosporous plant, typically producing a female gametophyte while megasporogenesis is the formation of megaspores in angiosperms.

Megaspore is a related term of megasporocyte.

As nouns the difference between megasporocyte and megaspore

is that megasporocyte is a megaspore mother cell while megaspore is the larger spore of a heterosporous plant, typically producing a female gametophyte.

Megasporic is a derived term of megaspore.

As a noun megaspore is

(botany) the larger spore of a heterosporous plant, typically producing a female gametophyte.

Megaspore is a synonym of macrospore.

As nouns the difference between macrospore and megaspore

is that macrospore is one of the specially large spores of certain flowerless plants, as Selaginella, etc while megaspore is the larger spore of a heterosporous plant, typically producing a female gametophyte.